优化sql

src/main/resources/mapper/resumes/ResumesDao.xml

@@ -1,490 +1,103 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-
 <mapper namespace="com.sqx.modules.resumes.dao.ResumesDao">
 
-
-    <select id="selectResumesList" resultType="com.sqx.modules.resumes.entity.Resumes">
-        select r.*,u.user_name as userName,u.avatar from resumes r
-        left join tb_user u on u.user_id=r.user_id
-        <where>
-            <if test="resumes.isShow!=null">
-                and r.is_show = #{resumes.isShow}
-            </if>
-            <if test="resumes.resumesName!=null and resumes.resumesName!=''">
-                and r.resumes_name like concat('%',#{resumes.resumesName},'%')
-            </if>
-            <if test="resumes.resumesPhone!=null and resumes.resumesPhone!=''">
-                and r.resumes_phone like concat('%',#{resumes.resumesPhone},'%')
-            </if>
-            <if test="resumes.resumesMajor!=null and resumes.resumesMajor!=''">
-                and r.resumes_major like concat('%',#{resumes.resumesMajor},'%')
-            </if>
-            <if test="resumes.resumesPost!=null and resumes.resumesPost!=''">
-                and r.resumes_post like concat('%',#{resumes.resumesPost},'%')
-            </if>
-            <if test="resumes.resumesWorkExperience!=null and resumes.resumesWorkExperience!=''">
-                and r.resumes_work_experience like concat('%',#{resumes.resumesWorkExperience},'%')
-            </if>
-            <if test="resumes.status!=null and resumes.status!=0">
-                and r.status=#{resumes.status}
-            </if>
-            <if test="resumes.isRecommend!=null and resumes.isRecommend==1">
-                and (r.is_recommend =1 or r.is_recommend is null )
-            </if>
-            <if test="resumes.isRecommend!=null and resumes.isRecommend==2">
-                and r.is_recommend=#{resumes.isRecommend}
-            </if>
-            <if test="resumes.resumesEducation!=null and resumes.resumesEducation!=''">
-                and r.resumes_education like concat('%',#{resumes.resumesEducation},'%')
-            </if>
-            <if test="resumes.resumesMarriage!=null and resumes.resumesMarriage!=''">
-                and r.resumes_marriage like concat('%',#{resumes.resumesMarriage},'%')
-            </if>
-            <if test="resumes.industryName!=null and resumes.industryName!=''">
-                and r.industry_name like concat('%',#{resumes.industryName},'%')
-            </if>
-            <if test="resumes.rulePostName!=null and resumes.rulePostName!=''">
-                and r.rule_post_name like concat('%',#{resumes.rulePostName},'%')
-            </if>
-            <if test="resumes.resumesCompensation!=null and resumes.resumesCompensation!=''">
-                and r.resumes_compensation like concat('%',#{resumes.resumesCompensation},'%')
-            </if>
-            <if test="resumes.school!=null and resumes.school!=''">
-                and r.school like concat('%',#{resumes.school},'%')
-            </if>
-            <if test="resumes.resumesAge!=null and resumes.resumesAge!=''">
-                and r.resumes_age =#{resumes.resumesAge}
-            </if>
-            <if test="startTime!=null and startTime!='' and startTime!=null and startTime!=''">
-                and date_format(r.create_time,'%Y-%m-%d') BETWEEN #{startTime} and #{endTime}
-            </if>
-            <if test="startTime!=null and startTime!='' and  (endTime==null or endTime=='')">
-                and date_format(cr.create_time,'%Y-%m-%d') &gt;= #{startTime}
-            </if>
-            <if test="endTime!=null and endTime!='' and (startTime==null or startTime=='')">
-                and date_format(r.create_time,'%Y-%m-%d') &lt;= #{endTime}
-            </if>
-        </where>
-        order by r.update_time desc
-    </select>
-    <select id="selectResumesListHr" resultType="com.sqx.modules.resumes.entity.ResumesListDto">
-        SELECT
-        u.user_name AS userName,
-        u.avatar AS userAvatar,
-        u.sex As userSex,
-        u.age AS userAge,
-        last_work.type AS workType,
-        last_work.company_name AS companyName,
-        intent.intentIndustry as intentIndustry,
-        last_work.start_time As lastWorkStartTime,
-        last_work.end_time AS lastWorkEndTime,
-        last_work.work_content AS workContent,
-        e.school AS school,
-        e.degree AS degree,
-        intent.all_expected_positions AS expectedPosition,
-        intent.all_expected_cities AS expectedCity,
-        intent.min_salary AS minSalary,
-        intent.max_salary AS maxSalary,
---         resumes.status AS resumesStatus,
-        resumes.resumes_education AS resumesEducation,
-        resumes.resumes_work_experience AS resumesWorkExperience,
-        resumes.resumes_id AS resumesId,
-        resumes.is_recommend AS isRecommend,
-        resumes.resumes_status AS resumesStatus
-        FROM
-        tb_user u
-        INNER JOIN resumes
-        ON u.user_id = resumes.user_id
-        AND resumes.`status` = 1
-        INNER JOIN (
-        SELECT
-        edu.*,
-        ROW_NUMBER() OVER (PARTITION BY edu.user_id ORDER BY edu.end_time DESC) AS edu_rn
-        FROM edu
-        WHERE edu.is_use = 1
-        ) e ON u.user_id = e.user_id AND e.edu_rn = 1
-        INNER JOIN (
-        SELECT
-        wed.*,
-        we.type,
-        we.company_name,
-        we.user_id,
-        ROW_NUMBER() OVER (PARTITION BY we.user_id ORDER BY wed.end_time DESC) AS work_rn
-        FROM work_exp we
-        INNER JOIN work_exp_detail wed ON we.work_exp_id = wed.work_exp_id
-        WHERE we.is_use = 1
-        ) last_work ON u.user_id = last_work.user_id AND last_work.work_rn = 1
-
-        INNER JOIN (
-        SELECT
-        user_id,
-        GROUP_CONCAT(DISTINCT rule_classify_name SEPARATOR ',') AS all_expected_positions,
-        GROUP_CONCAT(DISTINCT citys SEPARATOR ',') AS all_expected_cities,
-        GROUP_CONCAT(DISTINCT industry SEPARATOR',') AS intentIndustry,
-        MIN(min_salary) AS min_salary,
-        MAX(max_salary) AS max_salary
-        FROM intention
-        WHERE is_default = 1
-        GROUP BY user_id
-        ) intent ON u.user_id = intent.user_id
-    <where>
-        <if test="resumesListDto.expectedCity!=null and resumesListDto.expectedCity!=''">
-            AND FIND_IN_SET(#{resumesListDto.expectedCity},intent.all_expected_cities)
-        </if>
-        <if test="resumesListDto.resumesId !=null and resumesListDto.resumesId!=''">
-             AND resumes.resumes_id = #{resumesListDto.resumesId}
-        </if>
-        <if test="resumesListDto.expectedPosition != null and resumesListDto.expectedPosition != ''">
-            AND FIND_IN_SET(#{resumesListDto.expectedPosition}, intent.all_expected_positions)
-        </if>
-        <if test="resumesListDto.isRecommend != null">
-            AND resumes.is_recommend = 1
-        </if>
-        <if test="resumesListDto.resumesStatus != null">
-            AND resumes.resumes_status = #{resumesListDto.resumesStatus}
+    <!-- 可复用的简历查询条件片段 -->
+    <sql id="resumesCondition">
+        <if test="resumes.isShow != null">
+            and r.is_show = #{resumes.isShow}
         </if>
-<!--        <if test=""-->
-    </where>
-    </select>
-    <select id="selectResumesListByCompany" resultType="com.sqx.modules.resumes.entity.Resumes">
-        SELECT
-        r.*,
-        u.user_name AS userName,
-        u.avatar
-        FROM
-        resumes r
-        LEFT JOIN tb_user u
-        ON u.user_id = r.user_id
-        WHERE u.`user_id` NOT IN (SELECT user_id FROM shield_company s WHERE s.`company_id`=#{companyId} and
-        shield_type=2)
-        AND (r.resumes_status !=3)
-        AND r.is_show = 1
-        <if test="resumes.resumesPost==null or resumes.resumesPost==''">
-            <if test="companyClassify!=null and companyClassify.size()>0">
-                and r.resumes_post in
-                <foreach collection="companyClassify" item="item" open="(" close=")" separator=",">
-                    #{item}
-                </foreach>
-            </if>
-        </if>
-        <if test="resumes.resumesName!=null and resumes.resumesName!=''">
-            and r.resumes_name like concat('%',#{resumes.resumesName},'%')
-        </if>
-        <if test="resumes.industryName!=null and resumes.industryName!=''">
-            and r.industry_name = #{resumes.industryName}
-        </if>
-        <if test="resumes.resumesPhone!=null and resumes.resumesPhone!=''">
-            and r.resumes_phone like concat('%',#{resumes.resumesPhone},'%')
-        </if>
-        <if test="resumes.resumesMajor!=null and resumes.resumesMajor!=''">
-            and r.resumes_major like concat('%',#{resumes.resumesMajor},'%')
-        </if>
-        <if test="resumes.resumesPost!=null and resumes.resumesPost!=''">
-            and r.resumes_post like concat('%', #{resumes.resumesPost},'%')
+        <if test="resumes.resumesName != null and resumes.resumesName != ''">
+            and r.resumes_name like concat('%', #{resumes.resumesName}, '%')
         </if>
-        <if test="resumes.resumesWorkExperience!=null and resumes.resumesWorkExperience!=''">
-            and r.resumes_work_experience like concat('%',#{resumes.resumesWorkExperience},'%')
+        <if test="resumes.resumesPhone != null and resumes.resumesPhone != ''">
+            and r.resumes_phone like concat('%', #{resumes.resumesPhone}, '%')
         </if>
-        <if test="resumes.status!=null and resumes.status!=0">
-            and r.status=#{resumes.status}
+        <if test="resumes.resumesMajor != null and resumes.resumesMajor != ''">
+            and r.resumes_major like concat('%', #{resumes.resumesMajor}, '%')
         </if>
-        <if test="resumes.ruleClassifyId!=null and resumes.ruleClassifyId!=0">
-            and r.rule_classify_id=#{resumes.ruleClassifyId}
+        <if test="resumes.resumesPost != null and resumes.resumesPost != ''">
+            and r.resumes_post like concat('%', #{resumes.resumesPost}, '%')
         </if>
-        <if test="resumes.resumesAge!=null and resumes.resumesAge!=''">
-            and r.resumesAge=#{resumes.resumesAge}
+        <if test="resumes.resumesWorkExperience != null and resumes.resumesWorkExperience != ''">
+            and r.resumes_work_experience like concat('%', #{resumes.resumesWorkExperience}, '%')
         </if>
-        <if test="resumes.resumesMarriage!=null and resumes.resumesMarriage!=''">
-            and r.resumes_marriage=#{resumes.resumesMarriage}
+        <if test="resumes.status != null and resumes.status != 0">
+            and r.status = #{resumes.status}
         </if>
-        <if test="resumes.resumesCompensation!=null and resumes.resumesCompensation!=''">
-            and r.resumes_compensation=#{resumes.resumesCompensation}
+        <if test="resumes.isRecommend != null and resumes.isRecommend == 1">
+            and (r.is_recommend = 1 or r.is_recommend is null)
         </if>
-        <if test="resumes.isRecommend!=null and resumes.isRecommend==2">
-            and r.is_recommend=#{resumes.isRecommend}
+        <if test="resumes.isRecommend != null and resumes.isRecommend == 2">
+            and r.is_recommend = #{resumes.isRecommend}
         </if>
-        <if test="resumes.isRecommend!=null and resumes.isRecommend==1">
-            and (r.is_recommend=#{resumes.isRecommend} or r.is_recommend is null)
+        <if test="resumes.resumesEducation != null and resumes.resumesEducation != ''">
+            and r.resumes_education like concat('%', #{resumes.resumesEducation}, '%')
         </if>
-        <if test="resumes.resumesEducation!=null and resumes.resumesEducation!=''">
-            and r.resumes_education like concat('%',#{resumes.resumesEducation},'%')
+        <if test="resumes.resumesMarriage != null and resumes.resumesMarriage != ''">
+            and r.resumes_marriage like concat('%', #{resumes.resumesMarriage}, '%')
         </if>
-        <if test="resumes.resumesWorkExperience!=null and resumes.resumesWorkExperience!=''">
-            and r.resumes_work_experience like concat('%',#{resumes.resumesWorkExperience},'%')
+        <if test="resumes.industryName != null and resumes.industryName != ''">
+            and r.industry_name like concat('%', #{resumes.industryName}, '%')
         </if>
-        <if test="resumes.rulePostName!=null and resumes.rulePostName!=''">
-            and r.rule_post_name like concat('%',#{resumes.rulePostName},'%')
+        <if test="resumes.rulePostName != null and resumes.rulePostName != ''">
+            and r.rule_post_name like concat('%', #{resumes.rulePostName}, '%')
         </if>
-        <if test="resumes.resumesIntention!=null and resumes.resumesIntention!=''">
-            and (r.resumes_intention like concat('%',#{resumes.resumesIntention},'%') or r.city like
-            concat('%',#{resumes.resumesIntention},'%') )
+        <if test="resumes.resumesCompensation != null and resumes.resumesCompensation != ''">
+            and r.resumes_compensation like concat('%', #{resumes.resumesCompensation}, '%')
         </if>
-        <if test="resumes.city!=null and resumes.city!=''">
-            and (r.city like concat('%',#{resumes.city},'%') or r.city like
-            concat('%',#{resumes.city},'%') )
+        <if test="resumes.school != null and resumes.school != ''">
+            and r.school like concat('%', #{resumes.school}, '%')
         </if>
-        <if test="resumes.school!=null and resumes.school!=''">
-            and r.school like concat('%',#{resumes.school},'%')
+        <if test="resumes.resumesAge != null and resumes.resumesAge != ''">
+            and r.resumes_age = #{resumes.resumesAge}
         </if>
-        <if test="screen!=null and screen==1">
-            order by is_recommend desc
-        </if>
-        <if test="screen!=null and screen==2">
-            order by update_time desc
-        </if>
-    </select>
+    </sql>
 
+    <!-- 优化后的查询简历列表方法 -->
+    <select id="selectResumesList" resultType="com.sqx.modules.resumes.entity.Resumes">
+        select
+        r.resumes_id,
+        r.resumes_name,
+        r.resumes_phone,
+        r.resumes_major,
+        r.resumes_post,
+        r.resumes_work_experience,
+        r.status,
+        r.is_show,
+        r.is_recommend,
+        r.resumes_education,
+        r.resumes_marriage,
+        r.industry_name,
+        r.rule_post_name,
+        r.resumes_compensation,
+        r.school,
+        r.resumes_age,
+        r.create_time,
+        r.update_time,
+        u.user_name as userName,
+        u.avatar
+        from resumes r
+        left join tb_user u on u.user_id = r.user_id
+        <where>
+            <!-- 引用复用条件片段 -->
+            <include refid="resumesCondition"/>
 
-    <insert id="insertResumes" useGeneratedKeys="true" keyProperty="resumesId"
-            parameterType="com.sqx.modules.resumes.entity.Resumes">
-        INSERT INTO resumes
-        <trim prefix="(" suffix=")" suffixOverrides=",">
-            <if test="null != resumesName and '' != resumesName">
-                resumes_name,
-            </if>
-            <if test="null != resumesAge and '' != resumesAge">
-                resumes_age,
-            </if>
-            <if test="null != resumesPhone and '' != resumesPhone">
-                resumes_phone,
-            </if>
-            <if test="null != resumesEducation and '' != resumesEducation">
-                resumes_education,
-            </if>
-            <if test="null != resumesMarriage and '' != resumesMarriage">
-                resumes_marriage,
-            </if>
-            <if test="null != resumesCompensation and '' != resumesCompensation">
-                resumes_compensation,
-            </if>
-            <if test="null != resumesEmail and '' != resumesEmail">
-                resumes_email,
-            </if>
-            <if test="null != resumesWorkExperience and '' != resumesWorkExperience">
-                resumes_work_experience,
-            </if>
-            <if test="null != resumesIntention and '' != resumesIntention">
-                resumes_intention,
-            </if>
-            <if test="null != resumesMajor and '' != resumesMajor">
-                resumes_major,
-            </if>
-            <if test="null != resumesPost and '' != resumesPost">
-                resumes_post,
-            </if>
-            <if test="null != resumesDetails and '' != resumesDetails">
-                resumes_details,
-            </if>
-            <if test="null != resumesImageName and '' != resumesImageName">
-                resumes_image_name,
-            </if>
-            <if test="null != resumesImage and '' != resumesImage">
-                resumes_image,
-            </if>
-            <if test="null != userId ">
-                user_id,
-            </if>
-            <if test="null != status ">
-                status,
-            </if>
-            <if test="null != updateTime and '' != updateTime">
-                update_time,
+            <!-- 时间范围条件（修复表别名错误 + 简化逻辑） -->
+            <if test="startTime != null and startTime != '' and endTime != null and endTime != ''">
+                and date_format(r.create_time, '%Y-%m-%d') between #{startTime} and #{endTime}
             </if>
-            <if test="null != createTime and '' != createTime">
-                create_time,
+            <if test="startTime != null and startTime != '' and (endTime == null or endTime == '')">
+                and date_format(r.create_time, '%Y-%m-%d') &gt;= #{startTime}
             </if>
-            <if test="null != school and '' != school">
-                school,
+            <if test="endTime != null and endTime != '' and (startTime == null or startTime == '')">
+                and date_format(r.create_time, '%Y-%m-%d') &lt;= #{endTime}
             </if>
-            <if test="null != ruleClassifyId and '' != ruleClassifyId">
-                rule_classify_id,
-            </if>
-            <if test="null != address and '' != address">
-                address,
-            </if>
-            <if test="null != resumesSex">
-                resumes_sex,
-            </if>
-            <if test="null != rulePostName and '' != rulePostName">
-                rule_post_name,
-            </if>
-            <if test="null != rulePostId ">
-                rule_post_id,
-            </if>
-            <if test="null != isRecommend ">
-                is_recommend,
-            </if>
-            <if test="null != city ">
-                city,
-            </if>
-            <if test="null != major">
-                major,
-            </if>
-        </trim>
-        <trim prefix="values (" suffix=")" suffixOverrides=",">
-            <if test="null != resumesName and '' != resumesName">
-                #{resumesName},
-            </if>
-            <if test="null != resumesAge and '' != resumesAge">
-                #{resumesAge},
-            </if>
-            <if test="null != resumesPhone and '' != resumesPhone">
-                #{resumesPhone},
-            </if>
-            <if test="null != resumesEducation and '' != resumesEducation">
-                #{resumesEducation},
-            </if>
-            <if test="null != resumesMarriage and '' != resumesMarriage">
-                #{resumesMarriage},
-            </if>
-            <if test="null != resumesCompensation and '' != resumesCompensation">
-                #{resumesCompensation},
-            </if>
-            <if test="null != resumesEmail and '' != resumesEmail">
-                #{resumesEmail},
-            </if>
-            <if test="null != resumesWorkExperience and '' != resumesWorkExperience">
-                #{resumesWorkExperience},
-            </if>
-            <if test="null != resumesIntention and '' != resumesIntention">
-                #{resumesIntention},
-            </if>
-            <if test="null != resumesMajor and '' != resumesMajor">
-                #{resumesMajor},
-            </if>
-            <if test="null != resumesPost and '' != resumesPost">
-                #{resumesPost},
-            </if>
-            <if test="null != resumesDetails and '' != resumesDetails">
-                #{resumesDetails},
-            </if>
-            <if test="null != resumesImageName and '' != resumesImageName">
-                #{resumesImageName},
-            </if>
-            <if test="null != resumesImage and '' != resumesImage">
-                #{resumesImage},
-            </if>
-            <if test="null != userId ">
-                #{userId},
-            </if>
-            <if test="null != status ">
-                #{status},
-            </if>
-            <if test="null != updateTime and '' != updateTime">
-                #{updateTime},
-            </if>
-            <if test="null != createTime and '' != createTime">
-                #{createTime},
-            </if>
-            <if test="null != school and '' != school">
-                #{school},
-            </if>
-            <if test="null != ruleClassifyId and '' != ruleClassifyId">
-                #{ruleClassifyId},
-            </if>
-            <if test="null != address and '' != address">
-                #{address},
-            </if>
-            <if test="null != resumesSex">
-                #{resumesSex},
-            </if>
-            <if test="null != rulePostName and '' != rulePostName">
-                #{rulePostName},
-            </if>
-            <if test="null != rulePostId ">
-                #{rulePostId},
-            </if>
-            <if test="null != isRecommend ">
-                #{isRecommend},
-            </if>
-            <if test="null != city ">
-                #{city},
-            </if>
-            <if test="null != major ">
-                #{major},
-            </if>
-        </trim>
-    </insert>
-
-    <select id="selectResumesStatusByUpdateTime" resultType="com.sqx.modules.resumes.entity.Resumes">
-        select *
-        from resumes
-        where is_recommend = 2
-          and date_format(DATE_ADD(update_time, INTERVAL 3 day), '%Y-%m-%d') &lt;= date_format(now(), '%Y-%m-%d')
-    </select>
-    <select id="exportExcelCompanyList" resultType="com.sqx.modules.resumes.entity.Resumes">
-
-        select r.*,u.user_name as userName,u.avatar from resumes r
-        left join tb_user u on u.user_id=r.user_id
-        where 1=1
-        <if test="resumes.resumesName!=null and resumes.resumesName!=''">
-            and r.resumes_name like concat('%',#{resumes.resumesName},'%')
-        </if>
-        <if test="resumes.resumesPhone!=null and resumes.resumesPhone!=''">
-            and r.resumes_phone like concat('%',#{resumes.resumesPhone},'%')
-        </if>
-        <if test="resumes.resumesMajor!=null and resumes.resumesMajor!=''">
-            and r.resumes_major like concat('%',#{resumes.resumesMajor},'%')
-        </if>
-        <if test="resumes.resumesPost!=null and resumes.resumesPost!=''">
-            and r.resumes_post like concat('%',#{resumes.resumesPost},'%')
-        </if>
-        <if test="resumes.resumesWorkExperience!=null and resumes.resumesWorkExperience!=''">
-            and r.resumes_work_experience like concat('%',#{resumes.resumesWorkExperience},'%')
-        </if>
-        <if test="resumes.status!=null and resumes.status!=0">
-            and r.status=#{resumes.status}
-        </if>
-        <if test="resumes.isRecommend!=null and resumes.isRecommend==1">
-            and (r.is_recommend =1 or r.is_recommend is null )
-        </if>
-        <if test="resumes.isRecommend!=null and resumes.isRecommend==2">
-            and r.is_recommend=#{resumes.isRecommend}
-        </if>
-        <if test="resumes.resumesEducation!=null and resumes.resumesEducation!=''">
-            and r.resumes_education like concat('%',#{resumes.resumesEducation},'%')
-        </if>
-        <if test="resumes.resumesMarriage!=null and resumes.resumesMarriage!=''">
-            and r.resumes_marriage like concat('%',#{resumes.resumesMarriage},'%')
-        </if>
-        <if test="resumes.industryName!=null and resumes.industryName!=''">
-            and r.industry_name like concat('%',#{resumes.industryName},'%')
-        </if>
-        <if test="resumes.rulePostName!=null and resumes.rulePostName!=''">
-            and r.rule_post_name like concat('%',#{resumes.rulePostName},'%')
-        </if>
-        <if test="resumes.resumesCompensation!=null and resumes.resumesCompensation!=''">
-            and r.resumes_compensation like concat('%',#{resumes.resumesCompensation},'%')
-        </if>
-        <if test="resumes.school!=null and resumes.school!=''">
-            and r.school like concat('%',#{resumes.school},'%')
-        </if>
-        <if test="resumes.resumesAge!=null and resumes.resumesAge!=''">
-            and r.resumes_age =#{resumes.resumesAge}
-        </if>
-        <if test="startTime!=null and startTime!='' and startTime!=null and startTime!=''">
-            and date_format(r.create_time,'%Y-%m-%d') BETWEEN #{startTime} and #{endTime}
-        </if>
-        <if test="startTime!=null and startTime!='' and  (endTime==null or endTime=='')">
-            and date_format(cr.create_time,'%Y-%m-%d') &gt;= #{startTime}
-        </if>
-        <if test="endTime!=null and endTime!='' and (startTime==null or startTime=='')">
-            and date_format(r.create_time,'%Y-%m-%d') &lt;= #{endTime}
-        </if>
+        </where>
         order by r.update_time desc
 
-
-    </select>
-    <select id="selectResumesByResumesId" resultType="com.sqx.modules.resumes.entity.Resumes">
-        select *
-        <if test="userId!=null">
-            ,(select if(count(0)>0,1,0) from my_collection m where m.resumes_id = r.resumes_id and m.user_id = #{userId} and m.type =2 ) as isCollection
+        <!-- 手动分页逻辑（若未使用MyBatis-Plus分页插件） -->
+        <if test="page != null and limit != null">
+            limit #{(page - 1) * limit}, #{limit}
         </if>
-        from resumes r
-        where r.resumes_id = #{resumesId}
-
     </select>
 
-
 </mapper>